package com.itHsuSE.extend;

public class Sub extends Base { //子类
    public Sub(){
        System.out.println("sub()....");
    }
    public void sayOk(){
        System.out.println(n1+" "+n2+" "+n3+" "+getN4());
        test100();
        test200();
        test300();
        callTest400();
    }
}
